Home / 3,128.02-4,316.54-1,869.77

Finding the Fourth Proportional to 3,128.02, 4,316.54 and 1,869.77

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Solution

The fourth proportional to 3,128.02, 4,316.54 and 1,869.77 is: 2,580.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.02 : 4,316.54 = 1,869.77 : x
  2. Step 2: Convert to fraction form
    3,128.02/4,316.54 = 1,869.77/x
  3. Step 3: Cross multiply
    3,128.02x = 4,316.54 × 1,869.77
  4. Step 4: Simplify right side
    3,128.02x = 8,070,952.46
  5. Step 5: Solve for x
    x = 8,070,952.46/3,128.02
  6. Step 6: Final answer
    x = 2,580.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.